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Science Fair Project Ideas

Education.com has assembled a vast collection of science fair project ideas written by science teachers, professional scientists, and educational consultants on popular science fair topics ranging from physics and chemistry to biology and even sociology. We offer free science fair ideas suitable for every grade level, be it preschool, kindergarten, elementary school, middle school, or high school. Check the boxes in the sidebar to filter your results, or use the search bar to find that perfect science fair project or experiment your child will be sure to love.

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Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.
Aerodynamics
Fourth Grade
This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.
Engineering
Elementary School
Kids will learn about insulation, heat conduction, and the economic benefits of energy efficient windows in this cool science fair project.
Engineering
Fifth Grade
How do search engines work? What makes various search engines different? This project delves into the world of web crawlers, caching, indexing and algorithms.
Applied Mathematics
Computers
In this science experiment, do tensile strength test on fishing line, a strand of hair, a rubber band, and any other materials you're curious about!
Engineering
Fifth Grade
Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?
Aerodynamics
Fifth Grade
How good are humans at sound localization? Kids can try this cool science fair project idea to see how good their friends are at judging sound direction.
Applied Mathematics
Fifth Grade
Is the birthday paradox really a paradox, or just an intriguing problem that defies intuition? Find out with this birthday paradox science fair project.
Applied Science
High School

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